Featuring the proven 80/20 intensity balance described in Matt Fitzgerald's bestselling book 80/20 Running, this Ultra 100 Mile Level 0 training plan will provide you with the same workout structure used by the most successful runners in the world. TARGET ATHLETE This level is intended for athletes without a running background attempting their first ultra event. You should be able to comfortably run for at least 90 minutes before you start the plan. 100% STRUCTURED WORKOUTS Each workout ...